code: def setUp(self):
      super(TestSession, self).setUp()
      session._session["plot_options"].clear()
  
file_path: plotly.py/packages/python/chart-studio/chart_studio/tests/test_plot_ly/test_session/test_session.py
imports: from __future__ import absolute_import
  from chart_studio.tests.utils import PlotlyTestCase
  from chart_studio import session
  from chart_studio.session import update_session_plot_options, SHARING_OPTIONS
  from _plotly_utils.exceptions import PlotlyError
label_desc: Use image node_id 1 for calling the TestSession obj's underlying member method code with example usage: obj.setUp() without return types